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Hace 3 días · Protozoa are unicellular organisms belonging to the kingdom Protista. They are microscopic, diverse, and often found in aquatic environments. Protozoa can move using cilia, flagella, or pseudopodia, and they play essential roles in nutrient cycling and as predators of bacteria.
Hace 4 días · Some protozoans, however, have several flagella that may be scattered over the entire body; in such cases, the flagella usually are fused into distinctly separate clusters. Flagellar movement, or locomotion, occurs as either planar waves, oarlike beating, or three-dimensional waves.
Hace 2 días · Gut protozoa, such as Trichonympha, in turn, rely on symbiotic bacteria embedded on their surfaces to produce some of the necessary digestive enzymes. Most higher termites, especially in the family Termitidae, can produce their own cellulase enzymes, but they rely primarily upon the bacteria.
Hace 3 días · Acantharea — A kind of protozoa (microscopic creature) that has really cool skeletal structures. They look like diamonds. Anemone — A predatory ocean creature that has over 1,000 different species. They are known for their tentacles that come out from a polyp base.
Hace 4 días · Effectors include cilia (slender, hairlike projections from the cell surface), flagella (elongated, whiplike cilia), and other organelles associated with drawing in food or with locomotion. Protozoans also have subcellular cytoplasmic filaments that, like muscle tissue, are contractile.
Hace 3 días · Malaria is a mosquito-borne infectious disease that affects vertebrates. [6] [7] [3] Human malaria causes symptoms that typically include fever, fatigue, vomiting, and headaches. [1] [8] In severe cases, it can cause jaundice, seizures, coma, or death.
Hace 1 día · Recent Spider Pictures. Spider ID has received 84,916 pictures of spiders from all over the world. Discuss and help identify the most recent sightings shared by the community, or view all pictures.
